Fig. 4

Proportion of costs attributable to different healthcare services. ER: emergency room; HCU: homocystinuria; OP: outpatient; PKU: phenylketonuria; tHcy: total homocysteine
Proportion of costs attributable to different healthcare services. ER: emergency room; HCU: homocystinuria; OP: outpatient; PKU: phenylketonuria; tHcy: total homocysteine